313 lines
9.5 KiB
C++
313 lines
9.5 KiB
C++
/*------------------------------------------------------------------------------
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Copyright (c) 2004 Media Development Loan Fund
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This file is part of the LiveSupport project.
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http://livesupport.campware.org/
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To report bugs, send an e-mail to bugs@campware.org
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LiveSupport is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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LiveSupport is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with LiveSupport; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Author : $Author: maroy $
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Version : $Revision: 1.2 $
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Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/widgets/include/LiveSupport/Widgets/Button.h,v $
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------------------------------------------------------------------------------*/
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#ifndef LiveSupport_Widgets_Button_h
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#define LiveSupport_Widgets_Button_h
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#ifndef __cplusplus
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#error This is a C++ include file
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#endif
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/* ============================================================ include files */
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#ifdef HAVE_CONFIG_H
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#include "configure.h"
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#endif
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#include <gtkmm/button.h>
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#include <gtkmm/label.h>
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#include "LiveSupport/Core/Ptr.h"
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namespace LiveSupport {
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namespace Widgets {
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using namespace LiveSupport::Core;
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/* ================================================================ constants */
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/* =================================================================== macros */
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/* =============================================================== data types */
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/**
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* A button holding a text.
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*
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* @author $Author: maroy $
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* @version $Revision: 1.2 $
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*/
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class Button : public Gtk::Button
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{
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private:
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/**
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* The possible states of the button.
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*/
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typedef enum { passiveState, rollState, selectedState } State;
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/**
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* The Gdk::Window object, used to draw inside this button.
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*/
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Glib::RefPtr<Gdk::Window> gdkWindow;
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/**
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* The Graphics Context, used to draw.
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*/
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Glib::RefPtr<Gdk::GC> gc;
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/**
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* The text displayed inside the button.
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*/
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Ptr<Gtk::Label>::Ref label;
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/**
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* The state of the button.
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*/
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State state;
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/**
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* The left image for the passive state of the button.
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*/
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Glib::RefPtr<Gdk::Pixbuf> passiveImageLeft;
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/**
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* The center image for the passive state of the button.
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*/
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Glib::RefPtr<Gdk::Pixbuf> passiveImageCenter;
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/**
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* The right image for the passive state of the button.
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*/
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Glib::RefPtr<Gdk::Pixbuf> passiveImageRight;
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/**
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* The left image of the button, when the mouse hovers above it.
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*/
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Glib::RefPtr<Gdk::Pixbuf> rollImageLeft;
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/**
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* The center image of the button, when the mouse hovers above it.
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*/
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Glib::RefPtr<Gdk::Pixbuf> rollImageCenter;
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/**
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* The right image of the button, when the mouse hovers above it.
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*/
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Glib::RefPtr<Gdk::Pixbuf> rollImageRight;
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/**
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* Default constructor.
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*/
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Button(void) throw ()
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{
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}
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protected:
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/**
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* Handle the size request event.
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*
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* @param requisition the size request, also being the ouptut
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* parameter.
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*/
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virtual void
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on_size_request(Gtk::Requisition* requisition)
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throw ();
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/**
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* Handle the size allocate event.
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*
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* @param allocation the allocated size.
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*/
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virtual void
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on_size_allocate(Gtk::Allocation& allocation)
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throw ();
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/**
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* Handle the map event.
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*/
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virtual void
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on_map() throw ();
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/**
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* Handle the unmap event.
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*/
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virtual void
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on_unmap() throw ();
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/**
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* Handle the realize event.
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*/
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virtual void
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on_realize() throw ();
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/**
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* Handle the unrealize event.
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*/
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virtual void
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on_unrealize() throw ();
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/**
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* Handle the expose event.
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*
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* @param event the actual expose event recieved.
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* @return true if something was drawn (?)
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*/
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virtual bool
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on_expose_event(GdkEventExpose* event) throw ();
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/**
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* Execute a function on all children of this container.
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*
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* @param includeInternals true if the callback function should
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* also be called on the internals, false otherwise.
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* @param callback the callback function to execute on the children.
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* @param callbackData the data passed to the callback function.
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*/
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virtual void
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forall_vfunc(gboolean includeInternals,
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GtkCallback callback,
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gpointer callbackData)
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throw ();
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/**
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* Handle the add event.
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*
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* @param child the child being added to the widget.
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*/
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virtual void
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on_add(Gtk::Widget* child) throw ();
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/**
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* Handle the remove event.
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*
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* @param child the child to remove from the widget.
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*/
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virtual void
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on_remove(Gtk::Widget* child) throw ();
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/**
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* Tell what kind of children this container accepts.
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*
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* @return the type of children this container accepts.
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*/
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virtual GtkType
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child_type_vfunc() const throw ();
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/**
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* Handle the event when the mouse enters the button area.
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*/
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virtual void
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on_enter(void) throw ();
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/**
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* Handle the event when the mouse leaves the button area.
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*/
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virtual void
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on_leave(void) throw ();
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public:
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/**
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* Constructor, with only one state.
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*
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* @param label the text to display in the button
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* @param leftImage the left image for the button
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* @param centerImage the center image for the button
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* @param rightImage the right image for the button
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*/
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Button(const Glib::ustring & label,
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Glib::RefPtr<Gdk::Pixbuf> leftImage,
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Glib::RefPtr<Gdk::Pixbuf> centerImage,
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Glib::RefPtr<Gdk::Pixbuf> rightImage) throw ();
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/**
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* Constructor, with a rollover state.
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* Passive and rollover images are expected to be of the same size.
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*
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* @param label the text to display in the button
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* @param passiveImageLeft the left image for the button, passive
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* @param passiveImageCenter the center image for the button, passive
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* @param passiveImageRight the right image for the button, passive
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* @param rollImageLeft the left image for the button, onmouseover
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* @param rollImageCenter the center image for the button, onmouseover
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* @param rollImageRight the right image for the button, onmouseover
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*/
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Button(const Glib::ustring & label,
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Glib::RefPtr<Gdk::Pixbuf> passiveImageLeft,
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Glib::RefPtr<Gdk::Pixbuf> passiveImageCenter,
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Glib::RefPtr<Gdk::Pixbuf> passiveImageRight,
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Glib::RefPtr<Gdk::Pixbuf> rollImageLeft,
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Glib::RefPtr<Gdk::Pixbuf> rollImageCenter,
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Glib::RefPtr<Gdk::Pixbuf> rollImageRight) throw ();
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/**
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* A virtual destructor.
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*/
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virtual
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~Button(void) throw ();
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/**
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* Set the label of the button.
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*
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* @param label the text the button should display.
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*/
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virtual void
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set_label(const Glib::ustring & label) throw ()
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{
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this->label->set_label(label);
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}
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/**
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* Get the label of the button.
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*
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* @return the current label of the button.
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*/
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Glib::ustring
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get_label(void) const throw ()
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{
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return this->label->get_label();
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}
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};
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/* ================================================= external data structures */
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/* ====================================================== function prototypes */
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} // namespace Widgets
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} // namespace LiveSupport
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#endif // LiveSupport_Widgets_Button_h
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